Journal Citation Reports provides ranking for journals in the areas of science, technology, and social sciences. For every journal covered, the following information is collected or calculated: Citation and article counts, Impact factor, Immediacy index, Cited half-life, citing half-life, Source data listing, Citing journal listing, Cited journal listing, Subject categories, and Publisher information.
You can enter a journal title in the Search box under "Go to Journal Profile". Because impact factors mean little on their own, it's best to view the journal you are interested in comparison to the other journals in the same category. To determine the impact factor for a particular journal, select a JCR edition (Science and/ or Social Science), year, and Categories, found on the left of the screen. Click Submit. Scroll the list to find the journal you are interested in. The list can be resorted by Journal time, Cites, Impact Factor, and Eigenfactor.
The CJAR Journal Analyzer provides a view of journal performance, enriched with two journal metrics - SJR (SCImago Journal Rank) and SNIP (Source Normalized Impact per Paper).